unpleasant

a.不愉快的

unobtainable, unobtrusive, unobtrusively, unoccupied, unofficial, unofficially, unoriginal, unorthodox, unorthodoxy, unpack, unpaid, unpalatable, unpalatably, unparalleled, unparliamentary, unpaved, unpick, unplaced, unplanned, unplayable, unpleasantly, unpleasantness, unplug, unpopular, unpopularity, unpractised, unprecedented, unprecedentedly, unpredictable, unprejudiced, unpremeditated, unprepossessing, unpretentious, unprincipled, unprintable, unproductive, unprofessional, unprofessionally, unprofitable, unpromising,